Electrical water purifier



Feb. 19, 1929. v 1,702,767

T. J. CURTIS ELECTRICAL WATER PURIFIER Filed July 25, 1925 Patented Feb. 19, 1929.

UNITED STATES PATENT OFFICE.

THOMAS J'QCUBTIS, 01 LOS ANGELES, CALIFORNIA.

ELECTRICAL WATER 'PURIFIER! Application filed Juiy 28, 1825. Serial No. 45,457.

This invention relates to water purifiers but more particularly to devices for removs ing by electrolysis inorganic impurities, bacteria and other substances harmful to health.

Objects of this invention are to provide temperature controlled means in connection with an electrically operated liquid purifier so that when the temperature reaches a predetermined degree the purifier will automatically become inoperative; and to provide a water purifying apparatus having the new and improved features of construction and arrangement hereinafter described.

The invention is shown forpurposes of 11- lustration in the accompanying drawings in which:

Fig. 1 is a vertical section of a container showlng the purifier in position of use; and Fig. 2 is an enlarged longitudinal section of the purifier. p

The illustrated embodiment of the invention comprises a container or reservoir, 1 having a frusto-conically shaped bottom portion 2 which is adapted to fit into and be supported by a standard 3 having supporting legs so that the container may be convenient- 1y placed in any desired location. .As shown t e extreme bottom portion of the container projectsthru the supportin ring of the standard 3 and is provided with amanually controllable valve 4. The container 1 may be of glass and it will be apparent that organic material in the water will settle in the bottom portion 2 from which it may be drawn by openin the valve 4. A valve'4 .is connected to t e container about one fifth of'the distance from the bottom to the top and serves for drawing purified liquid from the container.

The upper end of the container 1 is formed with an opening thru which an electric urifier is adapted to extend. As indicate the purifier is'adaptedto extend into the liquid in the container and, as will hereinafter be described, electric current is passed thru the liquid thereby to kill the bacteria therein so that absolutely pure liquid may be drawn from the container thru the valve 4.

The purifier consists of an annular block 9 of suitable insulating material having aboss 10 over which fits an elongated metallic tube 11 having a plurality of apertures 1-2 thru which liquid in the container 1 may flow. Extending thru openings .in the block ,9 are electrodes 13 and 14 which are suitably spacedfrom each other and held in place in any suitable manner as by friction, the lower end of the electrodes being fixed to a disk 15" of insulating material having one or more apertures 16 thru which liquid may flow. Fitting over the block 9 is an insulating block .17 having a'handle part 18 formed with a hollow bore 19 thru which leads 20 and 21 extend. The lead 20 is connected to a screw '22 which engages a screw 23 contacting with the electrode 13 and the lead 21 is connected to a pin 24 which is adapted to engage a con- It is to be-understood that a manually controllable switch maybe employed for controlling the current flow to the leads 20 and 21.

Temperature-controlled means is for automatically making and brea 'ng the circuit so that when the temperature within tact piece 25 connected to the electrode 14.

rovided the container 1 reaches a predetermined degree the circuit is broken and when the temperature returns to normal the circuit is closed. .For this purpose a thermostatic disk 26 is connected to the pin24 and may be normally concave with the pin in contact with the contact piece .25, but when the temperasuddenly snaps to another position in which the disk is convex as shown b the dotted lines. In this latter position t e pin 24 is held away from the contact'pieoe 25. -When the temperature-returns to a predetermined normal the disk automatically returns to its former shape and the circuit is closed, thecurrent passing thru thewater from one electrode to the other.

The disk 26 is loosely supported at its edge so as to have free and unrestricted movement when snapping from one position to another,

ture reaches a'predetermined degree the disk and is constructedof two metals having difthe ends'of the electrode which are positioned in close juxtaposition to the disk.

While I have shown and described a construction which is the best form known to me at the present time, it is to be understood that the above is merely given by way of 11- lust-ration and not of limitation and that numerous changes in details of arrangement, construction, and choice of materials may be effected Without departing from the spirit of the invention especially as defined in the appended claim.

\Vhat I claim as new and desire to secure by Letters Patent is In a device of the class described, the combination of a pair of blocks having a chamber therebetween, spaced electrodes carried by one block, a handle on the other block having a hollow bore, leads extending thru the bore of said handle to said electrodes, a pin con nected to one lead, a thermostatic disk consisting of metals of dilferent coefiicients of eX- pansion connected to move said pin for making and breaking the circuit at different temperatures, and a perforated tube surrounding said electrodes.

In testimony whereof I have hereunto signed my name to this specification.

THOMAS J. CURTIS. 

